EP1072391B1 - Plastic clip bonding method and plastic clip - Google Patents

Plastic clip bonding method and plastic clip Download PDF

Info

Publication number
EP1072391B1
EP1072391B1 EP20000306382 EP00306382A EP1072391B1 EP 1072391 B1 EP1072391 B1 EP 1072391B1 EP 20000306382 EP20000306382 EP 20000306382 EP 00306382 A EP00306382 A EP 00306382A EP 1072391 B1 EP1072391 B1 EP 1072391B1
Authority
EP
European Patent Office
Prior art keywords
projections
clip
welding
plastic clip
recesses
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20000306382
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1072391A3 (en
EP1072391A2 (en
Inventor
T. Kakehi
T. Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Newfrey LLC
Original Assignee
Newfrey LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Newfrey LLC filed Critical Newfrey LLC
Publication of EP1072391A2 publication Critical patent/EP1072391A2/en
Publication of EP1072391A3 publication Critical patent/EP1072391A3/en
Application granted granted Critical
Publication of EP1072391B1 publication Critical patent/EP1072391B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • B29C66/30326—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined in the form of porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block

Definitions

  • the present invention relates to a method of bonding a plastic clip such as a retainer onto a natural fiber based porous member such as an automobile door trim by welding, and a plastic clip for use in the bonding method.
  • natural fiber based porous members including epoxy plastic as a binder are often utilized. Since the door trim or the like contains as much as 70% in weight of natural fiber, stamping is used for its forming. Therefore, the plastic clip such as the retainer for attaching the door trim to the automobile body is formed separately from the door trim which is made of the natural fiber based porous member. Therefore, the plastic clip such as the retainer is required to be integrally connected with the natural fiber based porous member of the door trim. To this end, ultrasonic welding or the like has been used. For example, Japanese Patent Laid-open No.
  • 04-208656 discloses a method of attaching a fastener of a plastic clip to a roof lining having a glass fiber substrate by ultrasonic welding. It is described that, in accordance with that attaching method, a portion of the attaching side of the plastic clip is melted into the glass fiber portions and voids thereof, so that a tangled bond of plastic and the glass fibers can be obtained. To apply it to a case where the plastic clip is bonded onto the natural fiber based porous member by welding, this attaching method must be somewhat improved
  • the natural fiber based porous member including epoxy plastic as a binder is often used.
  • the epoxy plastic clip is ultrasonic-welded onto the natural fiber based porous member including epoxy plastic as a binder, its bond strength often is not stabilized. Therefore, in order to obtain higher bond strength than a certain level, very high ultrasonic energy and very large pressure force are required for welding. As a result, the deformations due to heat affections and the pressed dents of the ultrasonic welding tip may appear on the bonding side and the rear side of the clip.
  • Japanese Patent Laid-Open No. 03-67722 discloses a method of ultrasonic-welding a plastic retainer clip onto a door trim.
  • the problems of the heat affection and dent are pointed out, and a proposal is made to eliminate the boundary gap between the door trim and the retainer bracket.
  • a projected ridge is formed on the attaching side of the retainer bracket, the projected ridge is positioned in recess of the attaching side of the door trim and then melted for bonding by ultrasonic-welding to fill a gap between the recess on the attaching side of the door trim and the outer side of the retainer bracket.
  • a projected portion is formed as a welding site in a core material portion of the wooden fiber based mat so as to ultrasonic-weld the plastic part onto the wooden fiber based mat.
  • a welding portion of the plastic part is positioned on the projected portion for ultrasonic-welding. The melted welding portion of the plastic part preferably tends to be penetrated into the core material of the wooden fiber based mat, however, it is troublesome to form the projected portion as the site for welding in the core portion of the wooden fiber based mat.
  • Japanese Patent Laid-Open 63-176134 discloses a method in accordance with the preamble of claim 1 for ultrasonic-welding fitting parts to a capitaous board, wherein the fitting parts are mounted on a holding jig with protrusions turning upward and then the charcoalous board is mounted on each of the fitting parts. An ultrasonic vibration is given to capitaous board from the opposite side by an ultrasonic horn descending onto the ligneous board and causes the protrusions to turn fittable into the ligneous board thereby welding the fitting parts to the ligneous board.
  • Japanese Patent Laid-Open 63-176134 further discloses a plastic clip in accordance with the preamble of claim 2.
  • an object of the present invention is to provide a method of bonding a plastic clip and a plastic clip for use in the bonding method, wherein when the plastic clip is bonded onto the porous member, there is no restriction on the shape of the natural fiber based porous member, wherein the clip can be bonded with low energy, without any heat affections and any dents on rear side of the clip, and wherein the excessive molten portions will be handled well.
  • a method of bonding a plastic clip onto a natural fiber based porous member by welding in accordance with independent claim 1.
  • the method comprises steps of; forming a plurality of projections in a welding region of the bonding side of a base of the plastic clip to extend to the natural fiber based porous member and a plurality of recesses adjacent the projections in the welding region for receiving the excessive molten portions of the melted projections; positioning the bonding side of the plastic clip at a predetermined position of the natural fiber based porous member; and fusing the bonding side to weld and bond the plastic clip onto the porous member, wherein fusing energy is transferred to the clip by a flat shaped tip of an ultrasonic horn contacting a flat side of the base of the clip, and the welding height of the projections and the depth of the recesses refer to a common reference plane defined by a reference level portion which is provided in a region other than the welding region at the bonding side of the plastic
  • a plastic clip in accordance with independent claim 2 for use in the above plastic clip bonding method.
  • the base of the plastic clip comprises a welding region and a non-welding region, the welding region is formed with a plurality of fusible projections extending to the natural fiber based porous member and a plurality of recesses adjacent the projections for receiving the excessive molten portions of the projections, and the welding height of the projections and the depth of the recesses refer to a common reference plane defined by a reference level portion of a non-welding portion of the plastic clip, and that opposite the bonding side .
  • the base is provided with a flat side adapted to receive the flat tip of an ultrasonic horn.
  • the projections and recesses may be alternately formed with each of the projections and recesses being aligned in a line.
  • the clip may also be made of material having a high grade of melt flow index (M.F.I.). This insures that the molten plastic material can easily impregnate into voids of the natural fibers, thus high energy is unnecessary, and both the bonding strength and the peeling resistance are increased.
  • Fig. 1 shows a plastic clip 1 according to one embodiment of the present invention.
  • the plastic clip 1 is bonded onto a natural fiber based porous member of the door trim or the like of an automobile, and is used as a retainer for attaching it to a panel of the mobile body.
  • the natural fibers suited for use include kenaf, hemp, sisal, flax, bagasse (sugarcane), palm, and the like.
  • Fig. 1(A) is a top view of the clip 1
  • Fig. 1(B) is a partial cross sectional view showing a right half cross sectioned portion of the clip 1.
  • a hook 2 is formed for attaching the porous member of door trim to the panel, and the lower portion thereof is formed as a conical trapezoid-like support portion 3.
  • a bottom portion of the clip 1 is a base 5 to be bonded onto the natural fiber based porous member, and in that embodiment of the clip 1, as shown in Fig. 1(A), is formed in a ring shape.
  • the clip 1 shown is only an example.
  • the plastic clip according to the present invention may be of any other shape, and it may be any clip that provides connection with other members, not being limited to the retainer.
  • the plastic clip 1 is molded with any plastic material having a property that is flowable when melted.
  • the desirable material has a high grade of melt flow index (M.F.I.). This insures that the molten plastic material can easily be impregnated into voids of the natural fibers so that without need of high energy, the bonding strength and the peeling resistance are increased.
  • M.F.I. melt flow index
  • PP polypropylene
  • PP polypropylene
  • the same polypropylene (PP) is preferable when it is used as a retainer for the door trim of the automobile. This enables to increase the welding strength after melted.
  • plastic materials for example, materials having high melt flow index and high viscosity after melted, such as ABS (acrylonitrile-butadiene-styrene) resin or AAS (acrylonitrile-rubber-styrene) resin may be used.
  • ABS acrylonitrile-butadiene-styrene
  • AAS acrylonitrile-rubber-styrene
  • Fig. 2 is a sectional view of a portion surrounded by a circle II of Fig. 1 (B).
  • the bonding side of the base 5 of the plastic clip 1 includes a welding region 6 at the center of the ring-like base and a non-welding region 7 except this welding region 6.
  • the non-welding region 7 is a portion not to be welded, typically, positioned outside of the welding region 6.
  • the non-welding region 7 may also be inside of the welding region 6 or other places.
  • the non-welding region 7 is assumed to be outside of the welding region 6.
  • the welding region is formed with a plurality of fusible (or melt-able) projections 9 extending to the natural fiber based porous member which is the member to be bonded.
  • a plurality of recesses 10 for receiving the excessive molten portions of the projections 9 are formed adjacent the projections 9.
  • the projections 9 and the recesses 10 are alternately formed and each of them is aligned in a line.
  • a plurality of the projections 9 and a plurality of the recesses 10 are alternately formed with each of them being in a line extending radially.
  • Such lines are formed at equal distances circumferentially. Furthermore, it is preferable that the projections 9 and the recesses 10 are alternately positioned with the line shape, however, they may not necessarily be alternately positioned in a line.
  • the recesses 10 may arbitrarily be positioned adjacent the projection 9 as possible as they can receive the excessive molten portion of the projection 9.
  • the non-welding portion 7 is also formed with a reference level portion 11 for defining or setting the welding height of the plastic clip 1. Since the reference height portion 11 is formed in the non-welding portion 7, it is not melted during the welding operation, resulting in maintaining the welding height of the clip 1 constant. If there is no reference level portion 11, then the height of the base 5 might be changed in accordance with the degree of melting of the projection 9. As a result, the depth of the adjacent recess 10 might be changed. If the base 5 is forced against the bonding side of the member or workpiece under the condition that the projections 9 is in the molten state, the depth of the recesses 10 might become shallow, and thus, the excessive molten portion of the projection 9 might become increased.
  • the recesses 10 could not adequately receive the excessive molten portion of the projection 9, thus the excessive molten portion might be pushed out of the bonding side.
  • the depth of the recesses 10 is maintained constant and the excessive molten portions of the projections 9 are adequately received without being pushed out of the bonding side.
  • the shape of the recesses 10 may be formed in a half sphere (as shown in Fig. 2), but they may have other any shapes.
  • Figs. 3 (A), and 3 (B) show other various recess shapes.
  • the recesses 13 are formed as round holes extending through the base 5.
  • the recesses 14 are formed as elongated holes extending through the base 5.
  • the shape of the projections 9 may be also formed in a half sphere (Fig. 2), but they may have other any shapes.
  • Figs. 4 (A) - (C) show other various projection shapes.
  • the projections 15 are formed in a quadrangular shape, and the recesses 17 can be also formed in a quadrangular shape.
  • the projections 18 are also formed in a triangular shape, and the recesses 19 are formed as a triangular shape.
  • the projections 21 are as a triangle rib shape, and the recesses 22 are formed in a triangular valley. In this way, the projections and the recesses may be formed in any shape.
  • Fig. 5 shows a welding condition of a plastic clip 25 to a natural fiber based porous member 26 by ultrasonic-welding wherein the clip 25 is slightly modified in shape from the plastic clip 1 for the purpose of the illustration, and the clip 25 is bonded onto the member 26 by the ultrasonic welding.
  • the natural fiber based porous member 26 is an automobile door trim made of material comprising natural fibers connected to each other by using PP (polypropylene) as a binder.
  • the ultrasonic horn 29 of the ultrasonic welding apparatus is positioned on a base 27 of the clip 25 which is located at the predetermined position on the porous member 26, so that a tip of the ultrasonic horn 29 is in contact with the base 27.
  • Fig. 6 shows a condition after the clip 25 has been welded onto the porous member 26.
  • the tip of the ultrasonic horn 29 is shaped flat so that the ultrasonic energy is efficiently transferred to the clip 25.
  • both the projections 30 and the recesses 31 do not exist on a side of the base 27 to which the ultrasonic horn 29 contacts.
  • the side of base 27 can be flat. This improves the efficiency of ultrasonic energy transferred from the ultrasonic horn 29 to the clip 25. Accordingly, the welding process can be accomplished with low energy, so as to reduce any heat affections and the force required to press the clip 25, resulting in eliminating any dent.
  • the depth of the recesses 31 is held constant, thus the excessive molten portions of the projections 30 are adequately received, and will never be pushed out from the bonding surface of the clip 25.
  • the above embodiment utilizes the ultrasonic welding for bonding, however, any other welding may be used.
  • any other welding may be used.
  • vibration welding may be used.
  • the projections on the bonding side of the plastic clip prevent the clip from shifting relative to the natural fiber based porous member during ultrasonic welding.
  • a portion of the projections is melted (or fused) and impregnated into the natural fiber based porous member to attribute its bonding.
  • This melting of the projections can be accomplished with low energy, therefore any heat affections and any dents on the rear side can be prevented.
  • the recesses formed adjacent the projections facilitate impregnation of molten portion into the voids between fibers of the porous member, resulting in a high bonding effect. Also, since the excessive molten portions of the projections are received in the adjacent recesses, it will never be pushed out.
  • the reference level portion is provided in the region except the welding region, not only the welding height is stably defined (or set) at constant level, but also the depth of the recesses is held constant for receiving the excessive molten portions of the projections adequately. Accordingly, the resulted bonding has high bonding strength at the bonding site without any pushing-out of the excessive molten portion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Connection Of Plates (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Sheet Holders (AREA)
EP20000306382 1999-07-27 2000-07-27 Plastic clip bonding method and plastic clip Expired - Lifetime EP1072391B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP21231099 1999-07-27
JP21231099A JP2001030359A (ja) 1999-07-27 1999-07-27 プラスチッククリップの接合方法及びプラスチッククリップ

Publications (3)

Publication Number Publication Date
EP1072391A2 EP1072391A2 (en) 2001-01-31
EP1072391A3 EP1072391A3 (en) 2001-02-14
EP1072391B1 true EP1072391B1 (en) 2004-10-06

Family

ID=16620452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000306382 Expired - Lifetime EP1072391B1 (en) 1999-07-27 2000-07-27 Plastic clip bonding method and plastic clip

Country Status (5)

Country Link
US (1) US6703129B1 (ja)
EP (1) EP1072391B1 (ja)
JP (1) JP2001030359A (ja)
AT (1) ATE278534T1 (ja)
DE (1) DE60014525T2 (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4534377B2 (ja) * 2001-04-19 2010-09-01 トヨタ紡織株式会社 パネルに対する部材の取付構造
JP4670357B2 (ja) * 2005-01-17 2011-04-13 マツダ株式会社 樹脂パネル接合構造
US7198315B2 (en) * 2005-03-23 2007-04-03 Lear Corporation Connector for automotive interior trim
JP2006272709A (ja) * 2005-03-29 2006-10-12 Shigeru Co Ltd 車両用天井材及びその製造方法。
US7131685B2 (en) * 2005-04-01 2006-11-07 Lear Corporation Automotive door trim panel having an integrated seal
AT502862B1 (de) * 2005-05-23 2009-01-15 Stumpfl Reinhold Ing Verbindungsvorrichtung
JP4722587B2 (ja) * 2005-06-30 2011-07-13 シーケーディ株式会社 多孔質ユニット
JP4713296B2 (ja) * 2005-10-17 2011-06-29 フクビ化学工業株式会社 プラスチック製フロアポストの製造方法
DE102007003357A1 (de) * 2007-01-17 2008-07-24 Airbus Deutschland Gmbh Verfahren zum Verbinden eines thermoplastischen Materials mit einem Faserverbundmaterial
JP5237624B2 (ja) * 2007-12-25 2013-07-17 しげる工業株式会社 車両用内装
DE102009004629A1 (de) 2009-01-14 2010-07-15 Volkswagen Ag Bauteilanordnung und Verfahren zur Herstellung einer Bauteilanordnung
JP5656896B2 (ja) * 2012-02-16 2015-01-21 河西工業株式会社 合成樹脂部品の接合方法
US9049929B2 (en) 2013-01-31 2015-06-09 A. Raymond Et Cie Appliance apparatus including a bonded bracket
EP3068604B1 (en) * 2013-11-12 2019-09-18 Dukane IAS, LLC Method for ultrasonic welding of thermoplastics parts
DE102014110913A1 (de) * 2014-07-31 2016-02-04 Newfrey Llc Befestigungselement und thermoplastisches Fügeverfahren
JP6010641B2 (ja) * 2015-01-28 2016-10-19 富士重工業株式会社 樹脂部材及び樹脂部材の接合方法
DE102015109483B4 (de) * 2015-06-15 2020-10-01 Lisa Dräxlmaier GmbH Faserverbundbauteil
EP3600851A1 (en) * 2017-03-20 2020-02-05 Multimaterial-Welding AG Bonding objects together
US10646345B2 (en) 2017-06-02 2020-05-12 Howmedica Osteonics Corp. Implant with hole having porous structure for soft tissue fixation
US11451024B2 (en) * 2018-03-30 2022-09-20 Autonetworks Technologies, Ltd. Wiring member integrated built-in component
EP3807080A1 (en) 2018-06-13 2021-04-21 Dukane IAS, LLC Methods for determining a melt layer thickness associated with a predetermined weld strength based on a correlation therebetween

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874315A (ja) 1981-10-29 1983-05-04 Toray Ind Inc 熱可塑性樹脂部材の超音波接合方法
FR2567674B1 (fr) 1984-07-10 1987-01-16 Thomson Alcatel Gigadisc Disque optique protege a elements soudes
IT8422932V0 (it) 1984-08-29 1984-08-29 Piazza S A S Flli Struttura di bicchiere a stelo, per acqua, vino, spumanti e simili.
JPS62192945A (ja) 1986-02-20 1987-08-24 Sony Corp 情報デイスク
JPH0615211B2 (ja) 1987-01-19 1994-03-02 トヨタ自動車株式会社 超音波による木質板への部品取付方法
JPS63212532A (ja) 1987-02-28 1988-09-05 Ikeda Bussan Co Ltd ブラケットの取付方法
JPS63278821A (ja) 1987-05-11 1988-11-16 Izumi Kogyo Kk 合成樹脂製品に小物部品を接合する接合方法
GB2214862B (en) * 1988-02-19 1991-09-04 British Gas Plc Joining polyolefinic members by fusion
JP2918162B2 (ja) 1988-11-02 1999-07-12 オリンパス光学工業株式会社 内視鏡画像処理装置
JPH0367722A (ja) 1989-08-08 1991-03-22 Araco Corp ドアトリムのリテーナブラケット取付方法
JPH04208656A (ja) 1990-11-30 1992-07-30 Sanwa Kogyo Kk 自動車用ルーフライニングにおける取付具の取付方法
JPH0834739B2 (ja) 1991-07-13 1996-03-29 大協株式会社 発泡成形板と射出成形品の超音波溶着法
JPH09133112A (ja) 1995-11-08 1997-05-20 Takashimaya Nippatsu Kogyo Kk ブラケット部品の基材への取付方法
US6066216A (en) * 1999-02-05 2000-05-23 Biometric Imaging, Inc. Mesa forming weld depth limitation feature for use with energy director in ultrasonic welding

Also Published As

Publication number Publication date
ATE278534T1 (de) 2004-10-15
DE60014525T2 (de) 2006-02-02
EP1072391A3 (en) 2001-02-14
DE60014525D1 (de) 2004-11-11
US6703129B1 (en) 2004-03-09
JP2001030359A (ja) 2001-02-06
EP1072391A2 (en) 2001-01-31

Similar Documents

Publication Publication Date Title
EP1072391B1 (en) Plastic clip bonding method and plastic clip
US20230018518A1 (en) Bonding objects together
CN107498879A (zh) 热塑性复合材料的超声焊接
JPH0768000A (ja) はめ込み部材と滑走用具を接合する方法、およびこの方法を実施するのに適したはめ込み部材と滑走用具
JPS6065082A (ja) スタツドのワ−クに対する固定方法
JP3851182B2 (ja) 重ね結合されたボード製品およびその結合方法
US5092643A (en) Automobile bumper
JP3390119B2 (ja) ブラケット部品の取付方法
KR20140047361A (ko) 도어트림내 부품들의 융착구조
KR101390227B1 (ko) 도어트림내 부품들의 방사상리브를 갖는 융착구조
KR101795577B1 (ko) 자동차 내장재의 융착 결합 구조
KR101488479B1 (ko) 차량 부품의 융착구조
JPH04820B2 (ja)
JPS62138232A (ja) 樹脂含浸性の基板に樹脂部品を溶着する方法
EP1674242B1 (en) Fibrous mat fixing structure
JP4330245B2 (ja) 繊維強化プラスチック成形方法及び穴形成用カラー
KR102227631B1 (ko) 접힘이 가능한 차량 부품의 융착 구조
JPH11268135A (ja) 超音波接合方法
JPS6225494B2 (ja)
KR102425147B1 (ko) 자동코팅 마찰용접 접합방법과 접합시스템
JPS60132739A (ja) 合成樹脂製プレ−トと平ワツシヤ−との固着方法
JP2911577B2 (ja) 車両のドアトリムにおけるリテーナブラケットの取付方法
JP2505993B2 (ja) 目隠しクリップの取付方法
KR20240084246A (ko) 체결력이 강화된 차량용 부품의 융착구조
US20210252800A1 (en) Attaching an object to a substrate

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010324

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20010926

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EMHART LLC

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NEWFREY LLC

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NEWFREY LLC

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041006

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20041006

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60014525

Country of ref document: DE

Date of ref document: 20041111

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050117

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050727

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050727

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050707

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060726

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050306

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070727

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090717

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090729

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60014525

Country of ref document: DE

Effective date: 20110201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100802